Smith



2 Sheets-Sheet 1.

(No Model.)

Nr 0. GOLDSMITH.

SWITCH STAND.

No. 440,560. Patented Nov. 11, 1890.

. 814mm Maw/ad; 4 t

q hfwe one o 8211 28034 Jfflttozmeqj UNITED STATES PATENT OFFICE.

NATHANIEL O. GOLDSMITH, OF CINCINNATI, OHIO, ASSIGNOR TO THE IVEIR FROGCOMPANY, OF SAME PLACE.

SWITCH-STAN D.

SPECIFICATION forming part of Letters Patent No. 440,560, dated November11, 1890.

Application filed July 31, 1890. Serial No. 360.496. (No model.)

To aZZ whom it may concern: in engagement. As the lever 6 is moved to Beit known that I, NATHANIEL 0. GOLD- turn the crank-shaft O, theengagement of the SMITH, a citizen of the United States, and a gearsmove the target-staff A into position resident of Cincinnati, in thecounty of Hamshown in Fig. 5. 5 ilton and State of Ohio, have inventedcertain I represents the white vane on the top of new and usefulImprovements in Switchthe target-staif A, and G represents the redStands, of which the following is a specifivane. Now movingsaidtarget-stafiAaquarcation. ter of a revolution brings the red to thefront The object of my invention is to provide and'the white vane I atright angles thereto, 1o mechanism for turning the target on athreeexposing the red or danger signal. This is the throw switch-standso as tomaintain the same position when the switch-rails H are movedsignal on two consecutive switch-movements, to connect with rails 2. If,now, the lever 6 be all of which will be fully setforth in the deturnedanother quarter of a revolution, the scription of the accompanyingdrawings, makmutilated gears being in position shown in I 5 ing a partof this specification, in which- Fig. 5 at the beginning of the movementare Figure 1 is a plan view of myimprovement out of engagement and thecrank-shaft O in position for use. Fig.2 is aside elevation movesaround, carrying the switch-rails H of an upright three-throwswitch-stand with into juxtaposition with the switch-rails 3,leavmyimprovement attached thereto. Fig. 3 is ing the red signal exposed. Thepinctstrikes 7o 20 a side elevation, partly in section, of a lowthe lugF and stops the movement. When down three-throw split-switch standcontainthe gears 4 and 5 are brought into position ing my improvement.Fig. 4 is a top plan shown in Figs. 5 and 6, it will be observed view ofthe gears for throwing the switch-staff that the tooth 10 on gear 5bears against the in the first position. Fig. 5 is a similar Viewperiphery of gear 4 and acts as a stop or look 25 showing the positionof the gears in the seoto prevent the backward movement of the 0ndposition. Fig. 6 is a plan View showing gears, thereby insuring theholding of the tar the position of the gears in the third posiget inposition. It prevents the rattle and tion. Fig. 7 is a perspective viewof a modijar of the train from moving the target-staif. fication adaptedto the low-down stand shown The same engagement is shown in Fig. 6. c inFig. 3. Fig.8 is a perspective view of one The point a, striking the lugF,locks the targetof the gears shown in Fig. 4. Fig. 9 is a perstaif inposition against a forward movement. spective view showing the detailsof one of When the lever 6 is turned backward, the tarthe parts. Fig. 10is a plan view of the top get-staff is not affected until the gears areof the switch-stand shown in Fig. 2. brought into position shown in Fig.5, when 3 5 1 represents the main tracks of a railway; they are broughtinto engagement by means 2 2, side switch-rails; 3 3,a second set ofside of the lugs 7 and 8, lugs 7 and 8 being prefswitch-rails. erablyplaced upon the under side of gear 4, W represents theuprightswitch-stand, and so that said lug 8, engaging with the lug 7, Othe crank-shaft. brings the teeth of the mutilated gear into 0 Brepresents a collar in which the targetmesh and causes the target-staffA to be shaftA journals. It is provided with ears D, turned intoposition exposing the white vane, which are secured to the table E byscrews when the said lever 6 has been turned back,

or bolts. I bringing the gears into position shown in Fig.

F represents a lug on the ears D. 4, and bringing the white vane to thefront 45 a is a pin in the target-staffA,which strikes and the red atright angles thereto.

against the lug to stop the rotation of the tar In the low-downswitch-stand, A represents get-stafi. the target-staff.

On the top of the crank-shaft O is mounted V 0' represents thecrank-shaft. a mutilated gear 4, and on the bottom of the The beveledgears are mutilated and pro- 50 target-staff is mounted a mutilated gear5. vided with lugs 7 and 8 and are of the same In Fig. 4 the teeth ofthese gears are shown construction as those shown in Figs. 4, 5, and

6, except the teeth are beveled instead of spurred, and the lugs 7 and 8are on the upper side of the gears.

The switch-stand shown in Fig. 2 is of the ordinary form and need not bedescribed.

The construction of the three-throw lowdown switch-stand is fullyexplained in Letters Patent No. 407,755, granted to Weir and GoldsmithJuly 23, 1889.

In the low switch-stand shown in Fig. 3 the lever 6 is shown in anupright position. When the bevel-gears are in the position shown in Fig.5, with the red vane exposed, when it is moved over, say, to the right,the gears are carried into position shown in Fig. 6, and

when said lever is moved, say, to the left the mutilated gears arecarried into position shown in Fig. 4, thus exposing the red or whitesignal, as occasion requires for the side tracks. Having described myinvention, what I claim is- 1. In combination with a switclrstand havingthe crank-shaft O and the target-staff A,the

mutilated gears 4 5, provided with the lugs 7 and 8,co-operating tobringthe mutilated gears into intermeshing engagement and serving toturn the target-stafi during a portion of the revolution, while allowingit to remain idle during the remainder of the revolution, substantiallyas described.

2. In combination with the switch-stand having the crank-shaft O and atarget-shaft A, the mutilated gears 4 and 5,provided with lugs 7 and 8,and with the teeth 10 of gear 5 abutting the periphery of gear 4 forlocking the target-stafi in position, said lugs co-operating to bringthe mutilated gears into intermeshing engagement, substantially asspecified.

In testimony whereof I have hereunto set my hand.

NATHANIEL O. GOLDSMITH.

Witnesses:

T. SIMMONS, C. W. MILES.

